Calcium nitrate
Calcium sulphate
Calcium carbonate
Calcium chloride
Answer is Right!
Answer is Wrong!
The correct answer is B. Calcium sulphate.
Plaster of Paris is a white powder that is made by heating gypsum, which is a mineral that is found in nature. When gypsum is heated, it loses some of its water and turns into calcium sulphate hemihydrate. This powder can be mixed with water to form a paste that can be used to set broken bones.
Calcium nitrate is a white, water-soluble salt that is used as a fertilizer and in the manufacture of explosives. Calcium carbonate is a white, chalky mineral that is found in limestone and marble. Calcium chloride is a white, water-soluble salt that is used as a de-icer and in the manufacture of plastics.
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